<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001769921</cik>
        <entityName>Bayswater Natural Resources Fund IV-A, LP</entityName>
        <issuerAddress>
            <street1>730 17TH STREET</street1>
            <street2>SUITE 500</street2>
            <city>DENVER</city>
            <stateOrCountry>CO</stateOrCountry>
            <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
            <zipCode>80202</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(303) 893-2503</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2019</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>-</firstName>
                <lastName>Bayswater Fund IV-A GP, LLC</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>730 17th Street</street1>
                <street2>Suite 500</street2>
                <city>Denver</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>GP of Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Steve</firstName>
                <lastName>Struna</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>730 17th Street</street1>
                <street2>Suite 500</street2>
                <city>Denver</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President and CEO of Managing Member of GP of Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lynn</firstName>
                <lastName>Belcher</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>730 17th Street</street1>
                <street2>Suite 500</street2>
                <city>Denver</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Executive Vice President and COO of Managing Member of GP of Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Don</firstName>
                <lastName>Barbula</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>730 17th Street</street1>
                <street2>Suite 500</street2>
                <city>Denver</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Senior Vice President of Operations of Managing Member of GP of Issuer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Victor</firstName>
                <lastName>Wind</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>730 17th Street</street1>
                <street2>Suite 500</street2>
                <city>Denver</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Senior Vice President and CFO of Managing Member of GP of Issuer</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Oil and Gas</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
            <item>3C</item>
            <item>3C.1</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001769921-19-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2019-02-25</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>William Mark Linnan</recipientName>
                <recipientCRDNumber>1547144</recipientCRDNumber>
                <associatedBDName>Stanwich Advisors LLC</associatedBDName>
                <associatedBDCRDNumber>124667</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>One Dock Street</street1>
                    <street2>4th Floor</street2>
                    <city>Stamford</city>
                    <stateOrCountry>CT</stateOrCountry>
                    <stateOrCountryDescription>CONNECTICUT</stateOrCountryDescription>
                    <zipCode>06902</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>AL</state>
                    <description>ALABAMA</description>
                    <state>AK</state>
                    <description>ALASKA</description>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>CO</state>
                    <description>COLORADO</description>
                    <state>CT</state>
                    <description>CONNECTICUT</description>
                    <state>DE</state>
                    <description>DELAWARE</description>
                    <state>DC</state>
                    <description>DISTRICT OF COLUMBIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>GA</state>
                    <description>GEORGIA</description>
                    <state>HI</state>
                    <description>HAWAII</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>IN</state>
                    <description>INDIANA</description>
                    <state>IA</state>
                    <description>IOWA</description>
                    <state>ME</state>
                    <description>MAINE</description>
                    <state>MD</state>
                    <description>MARYLAND</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>MI</state>
                    <description>MICHIGAN</description>
                    <state>MN</state>
                    <description>MINNESOTA</description>
                    <state>MO</state>
                    <description>MISSOURI</description>
                    <state>MT</state>
                    <description>MONTANA</description>
                    <state>NE</state>
                    <description>NEBRASKA</description>
                    <state>NV</state>
                    <description>NEVADA</description>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>NM</state>
                    <description>NEW MEXICO</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>NC</state>
                    <description>NORTH CAROLINA</description>
                    <state>OH</state>
                    <description>OHIO</description>
                    <state>OK</state>
                    <description>OKLAHOMA</description>
                    <state>OR</state>
                    <description>OREGON</description>
                    <state>PA</state>
                    <description>PENNSYLVANIA</description>
                    <state>SC</state>
                    <description>SOUTH CAROLINA</description>
                    <state>TN</state>
                    <description>TENNESSEE</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                    <state>UT</state>
                    <description>UTAH</description>
                    <state>VT</state>
                    <description>VERMONT</description>
                    <state>VA</state>
                    <description>VIRGINIA</description>
                    <state>WA</state>
                    <description>WASHINGTON</description>
                    <state>WI</state>
                    <description>WISCONSIN</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>345822039</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse>The total amount sold represents the aggregate total amount sold of this Fund IV-A and its companion Fund IV-B to investors.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>56</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>187500</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>88667</dollarAmount>
            </findersFees>
            <clarificationOfResponse>Amounts listed are aggregate amounts for this Fund IV-A and its companion Fund IV-B.  The Finders' Fees of $88,667 were or will be paid as retainers.  The amounts do not include reimbursement for legal and travel expenses made in the amount of $11,707.29</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Bayswater Natural Resources Fund IV-A, LP</issuerName>
                <signatureName>/s/ Victor Wind</signatureName>
                <nameOfSigner>Victor Wind</nameOfSigner>
                <signatureTitle>Senior VP and CFO of Managing Member of GP of Issuer</signatureTitle>
                <signatureDate>2020-02-19</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
